<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <link rel="stylesheet" href="test.css">
</head>
<body>
    <ul>
        <li>html</li>
        <li>css</li>
        <li>js</li>
    </ul>
    <div class="div1">环境配置</div>
    <p class="content">less、scss(sass)和stylus代码并不能被浏览器直接解析，所以必须先将它们编译成css代码</p>
</body>
</html>